code: def __init__(self):
      self.parser = argparse.ArgumentParser(
          prog="hub install", add_help=True
      )
      self.parser.add_argument(
          "--ignore_env_mismatch",
          action="store_true",
          help="Whether to ignore the environment mismatch when installing the Module.",
      )
  
file_path: PaddleHub/paddlehub/commands/install.py
imports: import argparse
  import os
  from typing import List
  from paddlehub.commands import register
  from paddlehub.module.manager import LocalModuleManager
  from paddlehub.utils import xarfile
  from paddlehub.server.server import CacheUpdater
label_desc: Use image node_id 1 to create a new InstallCommand object  with example: obj = InstallCommand()